The generator matrix

 1  1  1  1  2  1  1  0  1  1  2  2  1  1  2  1  1  2
 0  2  0  6  2  0  6  2  0  6  2  2  0  0  0  0  0  0
 0  0  4  0  0  0  0  0  0  0  0  0  0  0  4  0  4  4
 0  0  0  4  0  0  0  0  0  0  0  0  0  0  4  4  0  4
 0  0  0  0  4  0  0  0  0  0  0  0  0  4  0  4  4  0
 0  0  0  0  0  4  0  0  0  0  0  0  4  4  4  0  0  0
 0  0  0  0  0  0  4  0  0  0  0  0  4  0  0  0  4  4
 0  0  0  0  0  0  0  4  0  0  0  0  0  4  0  4  0  4
 0  0  0  0  0  0  0  0  4  0  0  0  4  4  4  4  4  0
 0  0  0  0  0  0  0  0  0  4  0  0  4  4  4  4  0  4
 0  0  0  0  0  0  0  0  0  0  4  0  4  0  0  4  0  4
 0  0  0  0  0  0  0  0  0  0  0  4  4  0  0  4  4  0

generates a code of length 18 over Z8 who´s minimum homogenous weight is 8.

Homogenous weight enumerator: w(x)=1x^0+134x^8+56x^10+852x^12+1216x^14+1024x^15+4084x^16+7168x^17+3568x^18+7168x^19+4184x^20+1024x^21+1280x^22+898x^24+24x^26+84x^28+3x^32

The gray image is a code over GF(2) with n=72, k=15 and d=16.
This code was found by Heurico 1.16 in 1.93 seconds.